30
4.0 Troubleshooting
©2002 Xantrex Technology Inc. All Rights Reserved.
P/N 975-0049-01-01 Rev A 10/2002
Potential Brownout Conditions
While operating in INVERT mode, large loads may
temporarily overload the unit causing the output voltage
to sag or drop out. For example, if a computer is being
operated from the unit and someone turns on a TV, the
inrush current for the TV may cause a brownout
condition on the unit causing the computer to reboot.
To minimize this condition:
1.
Keep the DC cables as short as possible.
2.
Use the largest battery cable gauge possible.
3.
Keep the positive and negative DC cables taped side
by side for as long as practical. This helps to reduce
the inductance of the cable.
If problems persist, keep in mind that the unit must take
in a large amount of DC current in order for it to make a
large amount of AC current for the load with a high
inrush current demand. A unit that has incorrectly sized
DC cables, poor connections, or failing batteries is like a
house with a substandard foundation.
Potential Problem Loads for UPS Applications
The unit can operate most AC loads. However, there are
special conditions that can cause a load to behave
differently than expected. The following describes some
of the common problems encountered when using
devices of this nature.
General Issues
Heavy Loads
If the battery-bank cannot deliver the necessary
amperage to operate a heavy load, the unit will shut
down. The battery voltage will then slowly rise back
above the low-voltage threshold causing the inverter to
resume operation. This cycling of the inverter will
continue until the heavy load is reduced or an additional
source of power is added.
CAUTION: Some of
these problem
loads can cause
irreparable
damage to the load
itself. Please
contact the
manufaturer of the
item for more
specific
information on UPS
compatibility
before using any of
these items with
the Trace UR-UPS.